Finding the Fourth Proportional to 8,019.59, 12,100.55 and 8,019.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,019.59 : 12,100.55 = 8,019.59 : x
2. Step 2: Convert to fraction form
   8,019.59/12,100.55 = 8,019.59/x
3. Step 3: Cross multiply
   8,019.59x = 12,100.55 × 8,019.59
4. Step 4: Simplify right side
   8,019.59x = 97,041,349.17
5. Step 5: Solve for x
   x = 97,041,349.17/8,019.59
6. Step 6: Final answer
   x = 12,100.55